General Category > Quadrajet Carb Talk and Tips

Picking Intake

<< < (3/3)

Cliff Ruggles:
Initial and total mechanical advance timing should be established base on heavy/full throttle engine power and ease of starting when hot. 

Use the vacuum advance to fine tune fuel economy as it is only applied at light throttle cruising (ported source), or at idle, light throttle cruising and coasting (manifold source).

I don not like or use the cheap spring/weight kits designed for most stock distributors.  Most factory distributors have a very good timing curve, which can be "tweaked" with a few minor modifications to the center cam and weights.  Light springs more often than not allow some of the advance curve to come in at idle speed, which can/will cause idle speed fluctuations in and out of gear (auto trans vehicles)....Cliff

Navigation

[0] Message Index

[*] Previous page