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Author Topic:   400 power
regal 22
Dirt Full Roller

Total posts: 28
posted May 15, 2005 12:33 PM  
I have a 400 small block bored 30 over with small heads with a 490 lift cam everything else is stock chevy, this is my backup motor (377 half fill was primary). The last race i was in the car finished 8th, beat 3 cars outlasted 9 others. the 377 wound up to 6500 rpm the 400 barely reached 5000 rpm, I was able to pass cars down low but halfway down the straighaway they would blow by me. The track is 5/8 mi, just wanted to ask some suggestions from you guys on what to do, i hate being slow.

Dirt Forum Champ
Total posts: 635
posted May 15, 2005 06:51 PM  
Need alot more info.

Specs on the heads(chamber & valve size, casting number/brand), cam duration & lobe sep, gears, carb, intake, exhaust, ignition, fuel... etc etc etc

Dirt Forum Racer

Total posts: 94
posted May 16, 2005 03:30 PM  
get more out of the heads,good carb and gear it to do the rest.

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