set ur carb to 1mm gap right off....put ur hsn to 2 3/4 and low to about 2 1/2 (wow have u heard this before??..hmmm).....get her warmed up good and with 1/2 tank fuel start leaning out the high and run her up to were she bogs and turn the needle back out about 1/8 turn...see what that does for ya (check temp)...then start leaning in your lsn and let it idle for a few seconds...then punch the throttle (you want it to launch right off without boggin or flamin out)...once u get the best performance I usually turn her back uout about 1 hr....make sure you keep an eye on your temps...tuning for performance on sh, infinity and vx small block they may want to run way up in the high 200's (like 270+)...u may havta fatten em up a lil.....once ya get it were u think ur good give her the good ol' pinch test...you want it to run for a few seconds but not rev real high before it shuts down....