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Discussion Starter · #1 ·
I just want to see what you guys suggest for my somewhat unorthodox combo

74 351w .030 over
speed pro forged pistons -10cc dish (10.5:1)
football rods with arp bolt upgrade
stock crank turned with fresh bearings
victor jr heads 210cc 2.05/1.60 valves
rpm air gap (for now prolly go with a victor jr soon)
build C4 with JW 9" convertor 3500rpm stall with 400ft/lb
1 3/4" longtubes into dual 2.5" short pipe with flowmaster 40 series'

I just got the heads and they don't have springs and aren't installed, I want to go with a solid roller cam lifters and springs

the car is a 84 mazda rx7 with 4.10 gears and 26" tire weighs around 2600lbs

I would like the cam range in the area of 3000-7000 give or take a little, this is a drag car that is just bearly streetable (working lights, full interior, but no cage yet)

I am thinking in the area of 250 duration at .050 and .625 lift with 1.6 rockers

the heads peak flow numbers are at .600 (290) and then drop to 28x at .700, I would really like to know the flow numbers at .650 cos i think they don't start dropping off untill mid .600 lift

i'm also in the market for a new carb cos the old edelbrock 650 just won't cut it anymore i'm thinking for 7000rpm i'm going to need a 800cfm carb any suggestions?

any experienced advise would be appreicated
 

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950HP carb, Vic Jr. intake, and comp solid roller #4121 intake and #4345 on exhaust ([email protected]) on a 110 lobe center.
I would use Isky tool room springs but you could use comps 944 springs, they work well in limited street high rpm engines.
You could have those heads ported some to help the ports work better...but with stock rods I would be looking at shift points of 7000 rpm or less.
Why didn't you just go with a scat crank and rods???? Much safer and then you could rev that 351 like it was meant to be!!
Brian
 

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Discussion Starter · #4 ·
i will be stroking the motor in the winter 408, 410, 418, 427 not quite sure yet.

the reason i want the rpm range up to 7000 is due to the stock crank and rods. what kinda lift are you suggesting? i can't seem to find any info on the parts numbers you posted
 

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Those aren't part numbers...they are lobe numbers. Lift is .656 Intake and .632 exhaust.
This would be a custom grind...if you ordered it from me or any other Comp dealer.
Brian
 

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you're not going to use the same cam after you stroke it are you. I would get engine size set first then cam it so you don't spend the money twice.
 

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Discussion Starter · #7 ·
i'm pretty sure i'm going with a Isky solid roller 252/260 @ .050 with 640/640 lift 110 lsa should be wild in the 357w, then i'll try it out in the stroker, i'm sure it'll work well, but if i'm leaving a lot of power on the table i don't have a problem changing to another cam again
 
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