View Full Version : initial timing figures at idle zz454 ?


victtor
Nov 23rd, 05, 06:09 PM
Hi what do u guys think i should be running in the way of initial timing figures at idle on this engine
Specs are zz454 9.6 comp ,230/236 hyd roller alloy heads airgap proform 750dp 3000 stall msd pro billet dissy digi6 box,BP 98 octane pump gas some guys say anything from 6deg-18eg at idle what you recon thanks

SIDEWAYS
Nov 23rd, 05, 09:03 PM
My friend has the 454ho which is similar to the ZZ454 (less alum heads). Any less than 16* it backfires. He runs it at 18* initial, 38* total. Runs in the 12's...not bad for no compression and tiny cam in 3800lb Chevelle.

JimM
Nov 23rd, 05, 09:28 PM
run what it likes.
It will probably like as much as you can give it. If it will crank over, and it doesn't ping at light throttle, it's not too much. Remeber to limit the advance in the MSD to keep your total under control, it should have come with a mess of limiter bushings.

Toby Keen
Nov 24th, 05, 02:51 AM
Victtor, where are you buying 98 octane pump gas?

victtor
Nov 24th, 05, 08:00 PM
HI TOBYu can buy the 98 octane pump gas at auy BP gas outlet ,its been on the market for about the last 3 months chers