I noticed last night that the filter I have been using for a number of years flows less than the holley blue pump that thats next to it. Its the crome and orange canister type. Anyone find this filter to be a weak link in there fuel system?

Marty,

How timely this post is smile.gif I too have been running the Fram cannister style fuel filter for the past 4 years on my ride. My fuel system is as follows:

- Stock GM tank (Year One replacement)
- Stock GM pickup (Year One replacement)
- rubber line from pickup to Fram cannister filter
- Rubber line from filter to Mallory Comp 140 pump
- -8AN line from rear to front of car
- Russel -8AN in line fuel filter
- -8AN from in line filter to 2 port Mallory regulator
- 2 -6AN lines from regulator to carb bowls

The last couple times out I've noticed that my fuel pressure is down to 3.5lbs (from 8lbs) at the 1/8th mile mark. I've only seen this since the car has started to 60' in the low 1.5x to high 1.4x range. The Fram filter is only rated at 90 GPH. My in-line Russel filter is rated at 130GPH. I've got 4 years use on my Comp 140 pump. I came close to ordering one of those big Aeromotive pumps (or Product Engineer is another I looked at) the other day, then I remembered that Ed (Racer1320) was running the same pump I am with quicker ET's. So in the end I decided to stick with my pump. I ordered the following things from Summit to redo my fuel system:

- Brush and seal kits so I can rebuild my Comp 140
- Mallory filter made for the Comp 140 pump
- -8AN fuel log
- Rebuild kit for my carburetor

I'm going to replumb the entire fuel system including getting the factory pickup modified for a 1/2" fuel line. I will rebuild the pump and carb. I'm also going to relocate the fuel regulator. Currently my regulator is mounted directly to the passenger side head. I'm concerned that the harmonics from the engine could be transfered to the regulator causing the needle and seat in the regulator to bounce. If this is happening the fuel pressure would certainly be negatively impacted. I intend to have the regulator suspended by the fuel line/ fuel log in the new setup. In my way of thinking my car should be MPH'ing better than 101 through the 1/8th and possibly better than the current 124-125 through the 1/4. I recently swapped from a dual plane to a single plane and didn't see an increase in ET OR MPH. The engine also wasn't particularly responsive to jetting changes. I believe that the increased plenum volume of the single plane along with the addition of a 1" spacer may have exploited an already borderline fuel system. Only time will tell. My car is coming back from the paint shop this week. With any luck I hope to get the fuel system fixed and hit the track in two weeks to test my theory. I'll let you know what I find.

Keep us updated. I have a orange fram filter on my car also. Haven't seen any problems yet.

Thanks for the input. I had to change my set up a little when I switched from my old 336 to the 355. I had cheap brass fittings coming out of the reg. and into the carb that caused the car to fall on its face in high gear. I now have 8an line and fittings front to back so if I have a problem now its the filter, pump or regulater.

90gph x 7 lb/gal = 630 lb/hr or about 1200hp.
As a guess Kjett, You stock pickup and rubber line was the problem. My new pickup came with a kink brand new in the box. I drilled it out and soldered in a 1/2" line. Not that my camaro is fast enough to need it. Yet...