Quote Originally Posted by pat mccarthy View Post
yep heavy power springs should help in the carb keeping it abit rich on the thinner part of the power rods but small rods may help.yep i know this just a$$ backward today . the plugs are AC RT 44 i think cross over to a R8c champion and is a tapper seat plug 14mm fit SBC tapper seat heads
I totally understand how the step-up springs work and only went up one step, with only 1 step more to go, but like said will probably be going up at least one step richer for power mode, possibly cruise mode too - which would keep the same jet just change the rod. For grins and giggles I will check/set my float levels too.

Since she bogs/hesitates to accelerate a bit a higher RPMs I was thinking about bumping my secondary main jet one size, and possibly my pump nozzle (accel pump rod in highest hole already) but I will only make ONE change at a time and test.

I will try the autolite plugs I have before ANY other changes, if no better, I will go back to the champion plugs I have in now and mod the carb - I will try both sets of plugs with each change to carburetion I make - that way I have an excuse to pull ALL plugs each time