What size tb and maf do you have? you know im kinda in the same boat, i added ported gt-40's, and e-cam, i went 13.25 with stock intake, before those mods i went 13.27?  doing some tuning, and adding a better intake my car feels stronger, i dont know what to tell you at this point, except play around with fp and timing, did you keep the stock springs? have the heads been milled?
im not too happy with the gt-40 heads, i do need better springs though.
my car seems to like about 44 psi vac off on fp, runs strong with that.
__________________
X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's.
race weight 3,160
12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear
13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear
|