My guess is it would take somewhere in the neighborhood of 550-600 horses to get into the 10's. There is a kid in Amarillo with a street driven early 90's GT that runs 10's. He told the kids that the engine was so strong that it torqued the front subframe a long time ago.
Anyway, he's running a Vortech blower on a highly fortified 347.
As far as the cam goes, I have one engine with an F303 and it really sounds nice at idle. The problem is that it has no brakes once the engine idles down. (no vacuum for the brake booster) This makes for some real fun planning while driving in traffic.
As for the rest of your questions, I'm about as far from the 10's as I am from Baghdad so I can't offer anything that I could back up.
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1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet.
Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer.
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