Hydraulic lifters use oil pressure to keep them pumped up and lifting the valves up, solid is well, solid. No oil pumping them up. With a solid, you can rev much much higher than a hydraulic set up. Why are you going with a carb set up? I don't see the point. I'm just biased to keep the original injected cars injected and the original carbed cars carbed.
Unless it was different on some later LATER model Foxes, I was under the impression all of 'em from at least '87 to '90 with premium sound had a pre-amp behind the radio - nothing under the passenger-side seat except maybe an electrical connector for seats with the inflatable lumbar support.
That "box" you see in the kickpanel area is, indeed, the computer (ECM).
That "box" you see in the kickpanel area is, indeed, the computer (ECM).
Yup, that's the computer in the kick panel - same location for pretty much all fuel-injected Foxes (even my '84 has it there).
The box under the seat ... dunno. Pics might help, but I'm 99% sure the premium sound package only had the amp behind the radio ... unless there was a SUPER premium sound package with a second amp in the system...?