I've modified it quite a bit and yes its naturally aspirated, I took it to the track and hit a dissapointing 14.4 at 94mph with 2.6 60' time., This was done with 3.23 gears,Street tires brought down to 21psi,Bad coil and 2 leaking plug wires, As of now I just finished Rebuilding my WC t-5, installed 3.42 rear, Bought Nitto 555R drag Radials,Brand new coil and New plug wires around. Any guesses, Im gonna take it to the track so id like to see who would be closest.

 

Ok I'll say 13.8 @99. That would be a nice jump from where you were, so good luck.

 

Well i would guess high 13s.As for the 14.4 in the 1/4 i would'nt be to dissapointed because that is very respectable for a 305.Looks to me like you have a very good working 5L.Good luck

 

Not a good idea to drop the psi on regular street radials. The sidewalls are too stiff and droping the pressure results in the loss of traction. I'm sure the Nitto's will help a lot.

 

My guess is a broken rear end, if it still has the stock 7.5... Mine broke on BFG radial T/As when I had the 6 spd.. (it was on the pass in my sig, heard lots of noise at the traps...end result was 6 pinion teeth and 1 ring gear tooth missing.) The first time I broke my 7.5 was on et drags...5k dump+ too much axle twist=*kaboom* axle in 2 pieces