89IROCZ-28

Hey guys.. so after about a month and a half I was able to get the shop that built my engine to give me some of my engine spec's..

252 Intake
262 Exhaust Cam
(Rocker Arm 1.5)

Comp is 10:1

350, bored .30 Over.

Now.. problem I'm running into, is that in Prescott Valley.. where I live its about 5100 feet above sea level.. and no I can't move to Phx or somewhere better lol. The stock cam is supposed to be at 6 degrees BTDC.. the engine was at 13.5, but the guy told me I should have it about 8.. anyone have any ideas? Also he said the orginal timing marks on the water pump no longer mean anything so I'm kinda clueless to why. I just put a new MSD Street fire coil on it, and will be upgrading the wires, cap and rotor over the next couple of of days. I thought he was buying new equipment as part of the engine build.. and it looks as if everything was stock. Hoping that helps a bit as well with the noise I'm hearing, 45mphs at appox 1500 rpm's it makes a weird noise, and you can hear it about anywhere after. Also, does anyone know where I can buy a chip for the car? Hypertech said that they can't help me being the car has a upgraded Cam and the compression is 10.1... so not really sure.

89IROCZ-28

So the type of cam I supposedly have in my engine, is as follows:

Howards Cams 180225-12 (From Summit)
http://www.summitracing.com/parts/HRS-180225-12/
Anyone have any input or experience with them?