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- - timing (https://67-72chevytrucks.com/vboard/showthread.php?t=290395)

1970chevy

05-04-2008 07:03 AM

timing

3 Attachment(s)

just fired up the beast and its popping at around 5000 rpm. im running a 1000cfm dominator, its burning rich...does anyone know what size of jet i should run?? what should the timing be for a 515 big block chevy??

djracer

05-04-2008 06:03 PM

Re: timing

sweet looking truck! I am running my total timing at 34 but I am gonna try 38 and see if it speeds up or slows down!

bigjimzlll

05-04-2008 06:09 PM

Re: timing

I run any where from 36-40 degrees. 92 jets on my 1150. 8lbs of fuel pressure. (165 jets on my 1050 alky dom)Which ignition are you running? Are you sure it's not a rev limiter kicking in?

1970chevy

05-05-2008 03:21 AM

Re: timing

not sure just running a msd hei distributor i got no ignition up grade yet just order a msd digital 7 box

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