port&polish stock manifold or buy new?

[rd02gt]

Well i am not sure what with produce more hp? because i could prot and polish a stock maifold but what is the hp rating on that? and what is the hp rating on the intake of the edelbrock performer mainfold kits? And i am talking uper and lower! and any other options of Nice "HP" and or "TQ" because i just bought a 91 gt and it only has bbk headers, short shifter, lowering springs, and will have new custom exhaust soon. just trow some sugjestions at me of combos or anything thanks

 

[mooktank]

Mines ported and polished and it does well. Thats with aftermarket heads though.

 

[ECU5.0]

http://tmossporting.bravepages.com/index.html thats all the info on a ported intake that you need

 

[90mustangGT]

The TMOSS intake which is a ported lower will be the cheapest way to go and will work just as well as any other intake until you get heads. The stock lower only flows about 130cfm per runner, the upper flows about 180cfm, the TMOSS lower will match the upper and feed your 150cfm flowing heads more than they can take. With an aftermarket intake you will probally loose velosity which will hurt TQ.