working on my reverse linkage has taken up some time.
I take it you installed your 4 speed? Using the stock colume shifter?
I noticed that it sounds fine through first, second, and third but if I floor it at a slow speed in fourth gear and let the boost build slowly then it'll build up some and then I can hear it detonating and the AF ratio is maybe a little bit leaner than the other gears. Does this mean it's probably detonating in the other gears too and I just can't hear it?
Snowman
You are probably detonating & you cannot hear it. No muffler?
When you are saying it is a bit leaner in 4th gear,,, what is the A/F ratio?
Most likely you are running out of fuel & part of the reason is because you do not have a boost reference line. I honestly do not understand why you would not install a boost reference line hooked up to your bonnet. Hooking it all up will make the engine a bit safer than the way you are running it currently & cost maybe $10.00.