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Author Topic:   pushing the rules
posted January 10, 2004 09:35 PM
we run a 3/8 high banked dirt track. we can run a q-jet.350 . everything else is should be stock. tech man says know more than400 max. lift on cam. but they dont tear down.other racers can only claim.last year i heard a car in our class thumping in the pits. tech man told him he couldnt race cause he could hear more than 400 lift in his cam.the question i have is does anyone have any ideas on a cam thats close or over 400 lift that doesnt thump? also what are some good cam manufatures with detailed cam cards . this will be my first cam that im going to degree. and dont want to be scraching my head when i get the cam card.we run 273 gears in low..thanks

posted January 10, 2004 10:26 PM
your best bet will probably be to run a rv cam of some kind a bone stock 350 has a lift around 390 so you don't have much room to play there. speedway sells a stock replacement 327 300 hp cam thats a 390/420 might want to look into that

posted January 11, 2004 02:17 AM
If you'll look at the sponsors of this site you will see a cam company. Dont you think it'd be nice to contact them for cam info.

dan ferry
posted January 11, 2004 10:58 AM
that tech man knows something i dont as far as i know duration makes the thump hes hearing and to stop aguy from running based on this wow definitely call camcraft and get one ground for ur specs.

posted January 11, 2004 11:17 AM
I LOVE IT!!!! that's called "hillbilly tech"! is the tech guys phone number BR-549?

posted January 11, 2004 12:24 PM
Ya, lift has nothing to do with how it idles, duration will make it lope. Not sure how you'd 'hear' lift.

Crane has some lift rule grinds in their catalog that are .390"/.410" lift and up to 236@.050" duration. That's have quite a lope to it and still check under your .400" rule.

I'd stuff a 236/236 in it and buy a dial indictor. If the tech guy refuses to let you run, offer to pull a valve cover and check it for him. I can't believe they'd fail you cause it 'sounds' like it's over .400".

posted January 14, 2004 12:00 PM
if you got to run stock go to auto zone tell them you want a replacement cam for a 1978 4 wheel drive blazer its a great pulling cam.tell them for a 350 if your running a chev

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