What goodies do I need to build a Fast slant 6

Runs high 12's with 3.73 Sure grip gears at the time.Worked manual valve body 904.Sold it with a new set of 4.30's and a spool. New owner runs high 12's low 13's and still is racing it.
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Hi Darter6
When you say 308hp I’m guessing it’s at the flywheel?.
Yes that’s certainly a bit of cash for 10 odd years ago, so did it have quite a lumpy cam in it? And how did you know what made the power did you have someone build it that had built them before a
Runs high 12's with 3.73 Sure grip gears at the time.Worked manual valve body 904.Sold it with a new set of 4.30's and a spool. New owner runs high 12's low 13's and still is racing it.
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Hi Darter6
So how did you know what worked with what to get the hp out of it, did you have someone that had built them engine’s before and just knew what worked ?.
And I’m guessing the 308hp was at the flywheel?.
Did it have a nice lumpy cam in it and a nice cammy note to it?.
I’m just throwing things around at the moment to see what is going to be best and to get the desired results I’m after, I’m wanting that real lumpy cam exhaust sound and I’m wanting some real snappy power that you can just put your foot down and throw you back into your seat and obviously light up the rear tyres if you really wanted to but at 50yo I’m past the driving like a dickhead stage but I’ve never owned a car that has a lot of power and I’d just like to do it once!, and I like the old school car’s so the ap6 with a nice engine, sounds like a good way to go and the ap6 is a car that’s within my budget yes I’d LOVE a HT Monaro but that’s well out of my reach unfortunately.
Yes I could buy something new and obviously have a lot more power for less cash.
My biggest concern is that they don’t make the aftermarket parts for the ap6 compared to an old Holden or Ford!, the car I’ve got had been sitting in a shed for over 25 years pulled apart so just hoping everything is there! He said it was so I just had to take him on his word. The body is in good condition very straight with only the smallest bit of rust.
Cheers