Trying to help a friend out that has a 355 combo..
What ET/MPH ?
Combo?
Jetting?


..thanks in advance.

Im running a 383 dynoed 400hp/425tq at the crank. I dont know my cam specs, around .500" of lift though. Dart Iron Eagle heads, Air gap intake, Headers, 750 holley w/ vacuum secondairies, MSD, TH400 w/3000 stall. weighs 34XX lbs w/o me. on 235/70 street tires(No traction at all) I ran a best of 13.11 @ 102(only been too the track once and didnt do any tuning since I couldnt hook up any way) My times were all over the place due too traction but my speeds were consistent and I picked up 2 mph when I uncapped my cutouts. I have drag radials now so hopefully I will be able too dip down too 12.XX with them.

355, 2.02/1.60 76cc heads, stock pistons (engine is VERY worn out ;) ). Comp XE284, air-gap intake, flowmaster 2 1/2" exhaust with 1 5/8 headers, close ratio muncie, 4.66 gear, 255/60-15 BFG's, and 650dp (66/73 jets, 4.5pv) about 3750 lbs total. It's a 68, and I use SSM's and KYB's, and disconnected front sway bar. It's fastest when I shift between 5500 and 6000, and launch above 3000 with generous clutch slip.

Best time is 13.50, and best MPH is 104. 2.0x best 60 foot. The new non-worn out engine I'm installing will hopefully be much better.... smile.gif

chris

355, flattops w/ vortec heads, xe274h cam, Performer rpm intake, 750 Holley DP, 1 5/8 headers, best my son has had so far is 13.40 @ 99.5 mph with 1.9x 60ft and 3.50 gears.

On a good day I think I would be around 13.9 in the 1/4 I've just run the 8th. Race weight was just shy of 3900.

355
882 heads, ported w/stock size swirl port valves
flat top pistons 4 valve relief (balanced)
comp 268H cam
performer intake
holley 650 spreadbore (unsure of jets)
HEI
headers, 2.25 exhaust out rear
700R4 w/shift kit stock stall
BFG 295/50/15 to 12 bolt 3.08

With power steering, AC, through exhaust, bad carb tuning/ bad gas, and inability to burn out due to axle hop I ran a 9.4 @ 75.76 with 2.305 60 ft.

best mph of night was 77.3

I definately have more potential with better launch and tuning.