Hey everyone,...

Thanks again for all the help in the "Needs a power boost - 327" Forum. We have decided to go with an Edelbrock Carb and an New Performer RPM Airgap Manifold. We want to do the cam now also. I'll relist the specs of the car -- what I know... I called the last owner yesterday, and although I didn't do the compression test myself, YET, he said that the compression is 9.5:1.

Anyway,... I understand what the Cam does and how it works,... Infact I even have the means to install it. The problem is actually choosing a cam. With so many different manufactures and different styles I have no idea which one to choose. I'm also a little sketchy on the difference between Solid and Hydraulic. For a 327 Engine of this build,... WHATS THE RIGHT CAM. Keep in mind, the cars not driven every day but it is driven on the street. Something street strip is probably the best bet. Anyway,... your the experts.... WHATS THE RIGHT CAM? Thanks again for the help,

Dan

Stock Air Cleaner
Edelbrock 650
Mallory Distributor with mechanical advance
MSD Ignition 6A
Edelbrock Performer RPM AIRGAP Intake Manifold
Fuelie Heads 9.5 to 1 compresssion)
New but stock bottom end
NEW TH-350 Trans (So

So, did you ever check the timing or any of the other things mentioned in your other post?

Originally posted by RatONaStick:
So, did you ever check the timing or any of the other things mentioned in your other post? No, I'm going to order the carb and intake so when I install them, I'll retime the car,

Dan

im sorry, im not trying to be a butthole but i cant believe how many people are willing to throw money at a car before they actually diagnose the problem.

i honestly believe that the timing is your problem and from your description of the symptoms it seems to hint at that. i myself have a mallory unilite and have experienced this as well, like i said the mallory out of the box only has 20 degrees mechanical advance. the advance is all in by 3000-3500rpm.

Anyway, when I nail it, the car seems to bog just a little and then accelerates slowly off the line. As it approaches 3500-4000 RPM it finally begins to move. Worst of all,... which I think is bothering us both most, is that it won't do a burn out on dry ground. (Right of passage) It currently has 3.90 gears and a TH-350 --- a nova with a 327, a th350 and 3.90s should be able to do a burnout no problem. the reason the car picks up at 3500 rpms or so is because the mechanical advance is all in at that point.

please check the timing!!!

im willing to bet that with the proper timing, the car will be a different animal.

Your right,

I really should have checked the timing first,... In most cases I would have just checked the timing being that its the quick and cost free fix. I'm away from the car right now but when I get home Ill take some time and tweak it and write back to you. I'm thinking that I should still order the carb though; I tried to calculate the CFM size compared to the engine and its somwhere around 522.76CFM; 750 Manual Choke is way to big! This is the formula I used:

. RPM X Displacment
CFM = ----------------- X .85 Street
. 3456

I did it based on 6500 RPM X 327 Engine

I figure I will probably get either a 600CFM Manual Choke, or a 650 Electric Choke,... hoping that the 650 won't be to small or too big rather, for the cam and heads.

Anyway,... I'll check the timing and get back to you... Ill be in the vicinity of the car on Friday,

Dan

P.S. Your not a butthole, I appreciate the knowledge - I'm learning too!

Dan

No problem

not sure whether that 750 holley is a double pumper or vacuum secondary. a 750 double pumper is definitely way to big, but if its a vacuum secondary model i wouldnt give up on it yet.

the nice thing about a holley vacuum secondary carb is that the secondaries only open as much as the engine dictates. you can install a stiffer secondary spring and tailor the opening for a wide variety of engine sizes and combos.

just for a comparison i have a 750 edelbrock on my biscayne and a 3310 780 cfm holley vacuum secondary carb on my chevelle. both carbs run pretty good on my biscayne, which has a mild 350, stock exhaust manifolds, a th350 and 3.55 gears. logic says that both carbs are too large for my biscayne, but it will burn the tires down with either carb.

even though your bros car has a 327, my biscayne is heavier, has stock exhaust manifolds and less gear. so if that holley is a vacuum secondary carb, like i said dont give up on it yet.