posted December 08, 2004 12:45 PM
THEY HAVE THROWN A NEW RULE AT US THIS YEAR 12" VACUME @1000RPM. I HAVE 2 QUESTIONS FIRST HOW HARD IS IT TO STAY ABOVE 12". I HAVE A 355 10.5/1, 1.94/1.6VALVES AND I HAVE TO RUN A STOCK INTAKE NOW. HOW AGRESSIVE CAN I GET WITH THE CAM.
ALSO IS THERE ANYWAY TO MAKE THE ENGINE PULL HIGH VACUME @ 1000 AND RUN STRONG ABOVE THAT.
b4racing Dirt Forum Champ
Total posts: 626
posted December 08, 2004 02:06 PM
make sure you set your carb up with a vac gauge and have good rings and exhaust system.
iowatoolman Dirt Freak
Total posts: 369
posted December 08, 2004 02:41 PM
our rule has been 15 inches @ 1000rpm i had a .567 roller cam that pulls almost 16 @1000 rpm in a 406 with big valved heads 2.05 intake and 1.60 exhaust
drive hard or drive home
GARYAL Dirt Forum Racer
Total posts: 94
posted December 09, 2004 09:00 AM
DO LARGER VALVES HELP YOU ON VACUM I KNOW NOTHING ON THE VACUM END OF ENGINES. NEVER REALLY NEEDED TO KNOW UNTIL NOW. ALSO WHAT ARE SOME WAYS TO UP THE VACUM.