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Username Post: Vacuum Advance- how is it supposed to work?
Posts: 595
Loc: Los Angeles area
Reg: 11-12-09
01-11-15 08:05 PM - Post#2513963    
    In response to markamatic

There's a tremendous wealth of knowledge here, especially in regards to timing and ignition. I learned everything I know about it on this here forum from guys like IgnitionMan; almost exclusively from him actually.

Now that I have a computer controlled distributor, and EFI, I can better appreciate seeing results instantly with the tap of a key rather than messing with weights and plates and springs and needles and such. Anyone wanna buy a well-tuned HEI distributor? He he he.

FWIW, I run 25° timing at idle and I've never seen more vacuum in park with as steady a needle, plus my truck launches and runs like a scalded mule. I still drive with a vacuum gauge and find it the most honest and reliable, realtime feedback I can get from my engine. Gotta love technology, old and new 😊
'59 Chevy 3100 Stepside
0.030-over 350, mild (214/224 @ .050) 112 LC cam,
vortec heads, air-gap, 600cfm carter, Holley Avenger EFI, 2-1/2" rams horns,
Bowtie Overdrives 700R4 w 2200rpm stall, 3.42 posi rear on top of 31.5" BFGs

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