400 whp on N/A VQ possible?

Originally Posted by bullitt5897

I am debating on producing a design I have been working on... Cost is the main issue! I would be looking to make it all out of Billet aluminum which can be cost prohibitive... but would allow me to produce it locally and something I could easily manage... Price would definitely be over $1k+ This is why most manufacturers cast their manifolds... Tooling cost is what is entry barrier for cast manifolds... You have to put out $15k+ just in tooling costs and have to make it back on your initial batches which drives up the price... expect something around the $1k-1.5k range for cast.