Offy SB intake…. Any good??

Just a street car. Maybe go to the track rarely, but something fun i can take my kids out in to do burnouts and such
Clean it up, may be blast it, and see what you have. It's pretty easy to measure the ports to see if they are right for your 340 heads. Is it an open plenum or a dual plane? The dual planes work better at lower rpm and with mildly built engines.