Just my 2cents but it sounds to me like your accelerator pump. When you go WOT you're engine is running lean and needs a shot of fuel to carry it until the secondary circuit becomes active. The "bog" everyone feels is not always the engine choking on too much gas. It actually needs more fuel to compensate for the secondary barrels being open and flowing more air.
__________________
1970 Stang Conv:
en:Boss351 (balanced/blueprinted)
mech cam(240*@.050/.540 lift)
Scrw in studs/comp cams rllr rkr
Mldn valves 2.19in 1.71ex
ported polished cc'd hrdnd ex
Keith Black FT pistons(10.25/1)
Weiand Excellorator manifold
Holley700 DP mech 2nds
MSD 6 box and Dis
Headers/2 1/2 inch duels
tr: modified FMX
re:9-inch/3.89 limited slip
|