[Kamikaze82Z28]

Hey what's up guyz? Here's my dilemma:
I have a 1982 Camaro Z28 Daytona 500 with a 400 Small Block,of course its not the stock engine,I have a beefed up camshaft new rockers pushrods and new intake/carb, I believe it is the stock tranny but a guy who put on a flexplate for me told me it was a 200r4; a B&M Shift Kit Improver, Elderbrock Performer Intake and an matching Elderbrock Performer 750 cfm carb. My problem is not too long ago I was trying to put my car in reverse and I did then I skipped a gear. Let me explain some more. Now park Is reverse, sometimes nuetral works but I have to go to D, drive is 2 and 2 is 1 I can't go to my 1 on my shifter. I can put my car in the park position but it stays in reverse and the park brakes don't activate I have to use my emergency brake. It is the stock shifter. What can possibly be my problem and how can I fix it. If it's just the shifter it's no biggie cause I was going to buy a Hurst Dual Gate Shifter for Yearone.Com anyway. You know the shifter that gives you the choice of letting the transmission shift on its on or choosing the first and second gears yourself. Any help would be much appreciated. Thanks a lot guyz. Take a look at it in a local car show where I placed in the top three for the first time.