Go to www.sr20forum.com and pm a guy named "lunar240z"

This conversion has already been done, but in a 240, DE bottom end and VVL on the topside, Rear-wheel VTAK yo!

9 pages of good reading....

http://www.sr20forum.com/sr20ve-sr16...s-rwd-vvl.html

Some info on adaptors for your 510

http://www.sr20forum.com/general-sr2...n-project.html

Another RWD VVL project....

http://www.sr20forum.com/sr20ve-sr16...ct-update.html

More adaptor info and link to buy...

http://www.sr20forum.com/group-buys/...rwd-trans.html

This should keep you busy for a while

-Mike