You could do a small STS turbo system with a properly set up carb, but the cost around $3000 if your a decent mechanic can be a bit high.

Considering a 302 should bolt in or some other better version of a motor that would of come in your truck for quite a bit less giving comperable HP with out the turbo headache's.

Not that I wouldn't turbo a 2.9 to be different, but for the money spent you could of been better off with other swaps.