I sold my 03 Cobra a while back and picked up an 89 SSP coupe. It was modded by the previous owner with a B-cam, equal length headers, pro chamber, flows, 4.10s, UD pullies, AFM powerpipe, some kind of MAF and 75mm TB and a 3550 with Alum DS. All the gaskets have tabs hanging out it has 8448 IIRC HGs on it, so it looks to have been rebuilt at some point. Bad things are, stock valve springs/rockers, heads, intake. It moves alright, especially with the 4.10s. My brother rented a local dyno for a few hours to tune his twin 62 turbo notch so I put mine on the rollers to check the AF and see what power it makes. Results were 250rwhp 297rwtq. I added a dry Zex kit when I bought the car that has been on my last 3 fox's, it has some drilled out jets in it, i dont remember what they started as. On the jug it made 350rwhp and 427rwtq. Although it spun pretty hard on the dyno thanks to some sweeet 225/50/17s on the back. I was really expecting no more than 225-230 through that stock intake, so I was stoked with 250, even though its shit coming from a 650rwhp Cobra lol. What do you guys think? How much power do you think it would pick up from an intake manifold? Im thinking ill do a box upper and Ported GT40 lower. Although I have a stock explorer mani in the garage.