i just got my new motor in still working out the bugs,ok here are the mods ,,,,,,,holley 4150 650 dp jetted 69 84 performer rpm intake dart iron eagle heads 215 cc intake runner 64 cc combustion chamber 1.6 full roller rockers, trw flat top pistons comp extrem #274, 230 236 at .50 488 490 lift,msd 6al with blaster 2 coil,hooker super comp headers full leanth,1/34 with 3 inch duel exhuast with h pipe into 2 40 series flowmaster mufflers also msd pro billet distributor hei and its a 355 ci with tko t-5 5 speed 4. 10 gears

 

I'm gonna say mid 12's at best if you can hook and launch hard. Those cylinder heads are WAAAAY too big considering motor size and cam choice. I really think they're gonna hurt more than help.

 

I agree that the heads are Way too big. You are gonna hafta spin a 350 to the moon to utilise those heads.

 

Hey 88iroc, what are you running with them vortecs on your car? oh and would the dart heads with the 200cc runners been a better choice for his setup??

 

Actually you'd probably be best with a 180cc head with that setup. I've never been to the track with my car but I'm guessing 12.50's give or take a few.

 

WELL THE HEADS ARE GOOD FOR 7000 RPM THE CAM 6000 THE INTAKE ALSO 6000 AND I SHIFT AT 6200,I WHENT WITH THE BIGGER HEADS IN CASE I WANTED TO GO UP IN CAM SIZE,12,50,S I COULD LIVE WITH THAT,WHAT DO YOU THINK WOULD BE BEST WITH THESE HEADS

 

There's only one way to find out

 

I think the best for those heads would be a 400ci motor with some decent compression and a huge cam. I can't stress enough how bad I think those heads are on such a mild motor. They are seriously going to kill your power more than you'd like to believe.

 

ok whent to the track last night to find out, it was 45 outside so the 60 ft sucked with the street tires, but here are the times 3 passes 2.2 60 ft 8.2 in the 1/8 at 93 mph ,2nd pass 2.3 60 8.4 at 94 and the best pass was a 8.0 with 2.0 60 ft at 93 mph im very happy with these times cause the mph is very high,if it hooked up all the way i think high 11s is possiable

 

Exactly how bad was your traction? Did you have to let out of the throttle any? 8.0 in the 1/8th is equal to about 12.50 but a 2.0 60 ft is equal to like a 14.10.

 

well i spun the tires all the way throw 2nd,as for 14.0 my bone stock gta l98 run 14.0 flat at 98 mph and runs 9.0 in the 1/8 at 78 mph 78 trap 94 trap thats a big diffance