ok ive got a 68 camaro and im trying to get it the 12 sec quarter mile. heres my specs, the engine i used a 400 bored .30 over. im using patriot 225cc heads 2.08 1.60 valves. comp cams retro fit roller .520 .540 lift cam with retro fit roller lifters, comp cams roller rockers 1:5. cloyes gear drive. holley strip dominator intake with 750 cfm carb, hooker super comp headers. eagle steel bottom end and 11:1 compression. im using about a 3000 stall converter and a th350 tranny with shift kit. in the rear end is a 3.73 positrack. so i havent run it yet, engine isnt in haha. what do you guys think it might run????? i was told the engine should be making aroun 450 to 500 horse and about the same in torque do you think thats about right????

 

yep sounds like it should dip into the 11`s to me with the right suspension set up.
11:1 wont be pump gas friendly!!

 

yeah it should run in the 12's. if it doesnt change the rear end gears to something like 410's.

 

11's would be sweet, i know 11:1 wont be to street friendly but ima only drive it on weekends and such. the suspension thats on it is just leafs in the rear with traction bars. still trying to figure a good tire size for it. any suggestions?

 

Like Burnt68 said, "Suspension". Sounds like you have enough grunt under the hood but without the proper weight transfer at launch you might not be able to hook-up. Might want to think about some variable shocks up front and some sub-frame connectors to avoid "The Twist".

 

Sub frame connectors should be a must have, if you don't already have them.

 

youll hit 12s all day without a problem at all, i ran 12.7s in my 350 hp 4th gen lol

 

ok, got my engine mostly together.. i just got a header problem. im debating on the hooker super comps 1 3/4 or the 1 7/8... how big of a difference would one make over the other?? any clearance problems?

 

1 3/4 will be plenty for this engine. Get a MT/ DRAG RADIAL tire and some type of traction aid. Preferrably Cal Trac bars and 11s should not be a problem. The long stroke of the 400 should like the 3:73 gears. Long stroke torque engines like less gear and the smaller header size will also add torque........Toni www.hrracecar.com

 

Are the heads alum? I ran pump gas in a 11.3 355 alum headed and mixed at the track. Also a thing to try perhaps is a duel plane intake, that strip domin intake is like a 4-8k range. Try taming it down to a rpm air gap (inwhich will move that car off the line alot better) or maybe a victor JR. the torque should be great!! Adjustable shocks all way round, 90/10 up front 50/50 or 60/40 in back and try some of the JEGSTER lift bars. They lift the whole car while tryin to slam the rear tires to the track. Good luck