Snowman,
 Originally Posted By: snowman4839
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.

A quick drill & tap & install a NPT fitting into the fuel pump. http://www.ebay.com/itm/New-Brass-Hose-B...=item19cbd35e25 & hose & you will get more fuel delivered to your float bowl.

MBHD


12 port SDS EFI